A 94-K HG-BASED SUPERCONDUCTOR WITH A 1212 STRUCTURE HG0.5BI0.5SR2CA1-XRXCU2O6+DELTA (R = ND, Y, PR)

被引：63

作者：

PELLOQUIN, D ^{[1
]}

HERVIEU, M ^{[1
]}

MICHEL, C ^{[1
]}

VANTENDELOO, G ^{[1
]}

MAIGNAN, A ^{[1
]}

RAVEAU, B ^{[1
]}

机构：

[1] UNIV CAEN,F-14050 CAEN,FRANCE

来源：

PHYSICA C | 1993年 / 216卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(93)90069-3

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new mercury-bismuth-based cuprate, Hg0.5Bi0.5Sr2Ca1-xNdxCu2O6+delta has been synthesized for x ranging from 0.35 to 1. The high-resolution electron microscopy and the X-ray diffraction analyses give evidence for a 1212-type structure, without any ordering between Hg and Bi. For 0.35 less-than-or-equal-to x less-than-or-equal-to 0.5, the samples are superconducting with a T(conset) of 94 K and a diamagnetic volume fraction of 32%. Annealings at low temperatures under different atmospheres do not modify the superconducting behavior. Substitutions of Pr and Y for Nd allow isotypic oxides to be synthesized with similar superconducting properties.

引用

页码：257 / 263

页数：7

共 21 条

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